Welcome

exploit-exercises.com provides a variety of virtual machines, documentation
and challenges that can be used to learn about a variety of computer
security issues such as privilege escalation, vulnerability analysis, exploit
development, debugging, reverse engineering, and general cyber security issues.

Nebula

Nebula covers a variety of simple and intermediate challenges that cover
Linux privilege escalation, common scripting language issues, and file
system race conditions.

Nebula is an ideal place to get started for people new to Linux exploitation.

Protostar

Protostar introduces basic memory corruption issues such as buffer overflows,
format strings and heap exploitation under “old-style” Linux system that does
not have any form of modern exploit mitigiation systems enabled.

Main Sequence

Main Sequence is the Capture The Flag event from Ruxcon 2012. It provides
a variety of challenges such as penetration tool usage, binary analysis,
basic cryptographic analysis, client side exploitation, password cracking
and general website hacking.